Website and General security or password question

Question

Hi, so for the longest time have I been wondering how would you go about making a, for example Java program, which at one point logs into your website (control panel or database like SQL), you would have to make a code which would send a request to login, with the said credentials, right? Well what if someone was to deobfuscate your project and find the code which logs into your panel/database, they would know your credentials too, right?

If not, how would you login to a website, database or a control panel or anything in general without who ever sees your code being able to do the same thing?

Answer 1

Hi happytohelp, thanks, but cant you see a part of the backend code in inspect element (talking about websites now)?